122121340 has 24 divisors (see below), whose sum is σ = 279769392. Its totient is φ = 44407680.

The previous prime is 122121323. The next prime is 122121359. The reversal of 122121340 is 43121221.

It is a congruent number.

It is an unprimeable number.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 277329 + ... + 277768.

It is an arithmetic number, because the mean of its divisors is an integer number (11657058).

Almost surely, 2^122121340 is an apocalyptic number.

122121340 is a gapful number since it is divisible by the number (10) formed by its first and last digit.

It is an amenable number.

122121340 is an abundant number, since it is smaller than the sum of its proper divisors (157648052).

It is a pseudoperfect number, because it is the sum of a subset of its proper divisors.

122121340 is a wasteful number, since it uses less digits than its factorization.

122121340 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 555117 (or 555115 counting only the distinct ones).

The product of its (nonzero) digits is 96, while the sum is 16.

The square root of 122121340 is about 11050.8524558063. The cubic root of 122121340 is about 496.1319400558.

Adding to 122121340 its reverse (43121221), we get a palindrome (165242561).

The spelling of 122121340 in words is "one hundred twenty-two million, one hundred twenty-one thousand, three hundred forty".